A monolithic array of silicon drift detectors for high-resolution gamma-ray imaging

被引：18

作者：

Fiorini, C. ^{[1
]}

Longoni, A. ^{[1
]}

Perotti, F. ^{[1
]}

Labanti, C. ^{[1
]}

Rossi, E. ^{[1
]}

Lechner, P. ^{[1
]}

Soltau, H. ^{[1
]}

Strüder, Lothar ^{[1
]}

机构：

[1] Politecnico di Milano, Dipto. di Elettronica e Informazione, 20133 Milano, Italy

来源：

IEEE Transactions on Nuclear Science | 2002年 / 49 II卷 / 03期

关键词：

Arrays; -; Detectors; Phosphors; Photodetectors; Photodiodes; Photomultipliers;

D O I：

10.1109/TNS.2002.1039603

中图分类号：

学科分类号：

摘要：

In this work, the preliminary results obtained with a high position resolution gamma-ray imaging detector are presented. The detector consists of a single-CsI(Tl) scintillator crystal optically coupled to a monolithic array of 19 silicon drift detectors (SDDs) used as photodetectors. In this array, having a total sensitive area of about 1 cm2, each SDD has a front-end JFET directly integrated on the detector chip, close to the collecting anode. This architecture reduces the electronic noise of each single photodetector to a value small enough to obtain a submillimeter position resolution at 122 KeV gamma-ray energy. The present detector module represents the development of a previous prototype based on a very limited numbers of SDDs.

引用

页码：995 / 1000